How can I make use of the If-None-Match header in the Google APIs Client Library for JavaScript? I have written the following code, but even when the ETag remains the same, the response status is always 200. How can I modify it to receive a 304 response when sending the ETag in the request headers and there are no modifications?
...
async unkno() {
let requestOptions = {
part: this.part,
maxResults: this.maxResults,
myRating: this.myRating,
};
if (ETag) {
requestOptions.headers = {
"If-None-Match": ETag,
};
}
try {
const data = await gapi.client.youtube.videos.list(requestOptions);
console.log(data);
ETag = data.result.etag;
return data.result;
} catch (error) {
throw error;
}
}
...